v0.3.0

Features

• add support for deno v0.38.0 (80d7ba4, 9824899, 26b58be)
• command: add support for custom type class's (7006a67)
• flags: add parse and remove types option to simplify custom types (d1bc510)

Bug Fixes

• command: suppress Missing argument(s) error for standalone options (47b162e)
• command: fix IArgumentDetails and IOption interface (52193e5)

Code Refactoring

• command: change type of commands from Array to Map (52f7e1f)
• command: refactor sub-command helper methods (d6d1b05)
• command: refactor internal args handling and add some args helper methods (957347e)

Documentation Updates

• update README.md (bee4767, d779851, 063905d, 4fc534d)
• flags: update README.md (3a9a2a4)